I. How a city-owned utility decides what to build

Start with what JEA is not. It is not an investor-owned company like Florida Power and Light or Duke Energy Florida, whose rates are set in cases before the Florida Public Service Commission (the state body that reviews what regulated utilities charge). JEA's rates and its large generation choices are set by its own board, whose members the mayor appoints and the City Council confirms. For a Jacksonville ratepayer, that means the people deciding which power plants to build answer to local officials, not to a state rate case or to Wall Street.

The commission still has a window into JEA. Every electric utility in Florida, municipal ones included, files a Ten-Year Site Plan, a long-range sketch of what it expects to build and retire over the coming decade. JEA also does integrated resource planning, the study a utility runs to decide what mix of plants, contracts, and efficiency will meet demand at the lowest reasonable cost. Those documents, plus the board agendas that approve the contracts, are where the solar shift is written down.

II. From coal to contracts

For decades JEA leaned on coal. It co-owned the St. Johns River Power Park, a large coal plant on Jacksonville's Northside, with Florida Power and Light, and that plant was shut down and demolished around 2018. The utility has also run the Northside Generating Station and held an entitlement in a coal plant over in Georgia. Coal was the backbone, and like most Southeastern utilities, JEA is still unwinding that history.

Its solar is mostly bought, not built. JEA has signed long-term power purchase agreements, contracts where it agrees to take the output of a solar farm that a private developer builds and operates, at a set price over many years. At last public report the commitments run on the order of a few hundred megawatts across several sites. For a city-owned utility, that structure keeps a lot of construction cost off its own books and locks in a price, though it also ties the utility to deals that run for a generation.

III. Who decides, and who pays

Here is where public ownership changes the math. At an investor-owned utility, a solar decision runs through a rate case, and shareholders typically earn a state-approved return on what the company builds. JEA has no outside shareholders. The costs of these contracts, and any savings they produce, flow to the roughly 450,000 to 500,000 electric accounts JEA serves, which is to say to the customers themselves.

That cuts both ways, and this desk will not pretend otherwise. Whether solar lowers a given bill depends on natural gas prices, on how the contracts are priced, and on what storms do to the system in any given year. The 2019 near-sale also left the utility with sharper governance scrutiny, and board turnover has been a fact of life since. If the honest answer to 'is this working' is 'it depends,' then what it depends on is visible in the same public files that record the decisions.

IV. Worth watching this month

1. Watch the JEA board's published agendas for any new or amended solar purchase agreement, which is routine business but the clearest signal of where the fleet is headed.

2. Watch for JEA's next Ten-Year Site Plan filing with the Florida Public Service Commission, a document filed on a regular cycle that lays out planned additions and retirements.

3. Watch the utility's integrated resource planning updates, which are where any shift between solar, gas, and storage would first appear in writing.

4. Watch federal energy data on JEA's generation mix, which updates on a lag, for whether coal's share keeps falling in practice and not only on paper.

5. Watch the City Council for any renewed discussion of JEA's governance or ownership, which looks routine most years but would matter a great deal if a sale ever returned to the table.